chore: upgrade proto version to 4.27.0

Author: TimothyJones

build.gradle

@@ -25,9 +25,9 @@ dependencies {
     api "io.contract-testing.contractcase:case_example_mock_types:${caseCoreVersion}"
     api "io.contract-testing.contractcase:test-equivalence-matchers:${caseCoreVersion}"
     implementation 'com.diogonunes:JColor:5.5.1'
-    implementation 'com.google.protobuf:protobuf-java:3.25.3'
-    implementation 'com.google.protobuf:protobuf-java-util:3.25.3'
-    implementation 'com.google.protobuf:protoc:3.25.3'
+    implementation 'com.google.protobuf:protobuf-java:4.27.0'
+    implementation 'com.google.protobuf:protobuf-java-util:4.27.0'
+    implementation 'com.google.protobuf:protoc:4.27.0'
     implementation "io.grpc:protoc-gen-grpc-java:${grpcVersion}"
     implementation "io.grpc:grpc-core:${grpcVersion}"
     implementation "io.grpc:grpc-stub:${grpcVersion}"
@@ -76,7 +76,7 @@ protobuf {
     }
     protoc {
         // Download from repositories
-        artifact = 'com.google.protobuf:protoc:3.25.1'
+        artifact = 'com.google.protobuf:protoc:4.27.0'
     }
     generateProtoTasks {
         all().configureEach { task ->

src/main/java/io/contract_testing/contractcase/client/AbstractRpcConnector.java

@@ -1,7 +1,7 @@
 package io.contract_testing.contractcase.client;
 
 import com.google.protobuf.AbstractMessage;
-import com.google.protobuf.GeneratedMessageV3.Builder;
+import com.google.protobuf.GeneratedMessage;
 import com.google.protobuf.StringValue;
 import io.contract_testing.contractcase.ContractCaseCoreError;
 import io.contract_testing.contractcase.LogPrinter;
@@ -28,7 +28,7 @@
 import java.util.concurrent.atomic.AtomicInteger;
 import org.jetbrains.annotations.NotNull;
 
-abstract class AbstractRpcConnector<T extends AbstractMessage, B extends Builder<B>> {
+abstract class AbstractRpcConnector<T extends AbstractMessage, B extends GeneratedMessage.Builder<B>> {
 
   private final ConcurrentMap<String, CompletableFuture<BoundaryResult>> responseFutures = new ConcurrentHashMap<>();
   private final AtomicInteger nextId = new AtomicInteger();

src/main/java/io/contract_testing/contractcase/client/ContractResponseStreamObserver.java

@@ -7,7 +7,7 @@
 import static io.contract_testing.contractcase.client.ConnectorOutgoingMapper.mapResultResponse;
 
 import com.google.protobuf.AbstractMessage;
-import com.google.protobuf.GeneratedMessageV3.Builder;
+import com.google.protobuf.GeneratedMessage;
 import io.contract_testing.contractcase.ContractCaseCoreError;
 import io.contract_testing.contractcase.LogPrinter;
 import io.contract_testing.contractcase.edge.ConnectorResult;
@@ -23,7 +23,7 @@
 import java.util.concurrent.Executors;
 import org.jetbrains.annotations.NotNull;
 
-class ContractResponseStreamObserver<T extends AbstractMessage, B extends Builder<B>> implements
+class ContractResponseStreamObserver<T extends AbstractMessage, B extends GeneratedMessage.Builder<B>> implements
     StreamObserver<ContractResponse> {
 
   private final AbstractRpcConnector<T, B> rpcConnector;